gps synchronized time and frequency standard - Unitronix

GPS 8
GPS SYNCHRONIZED TIME AND FREQUENCY STANDARD
� Frequency Accuracy of 1x10 -12
� Choice of Disciplined Oscillator
� Very Stable Time & Frequency outputs
� Optional P(Y) code GPS receiver
� 1U 19" rack mount
The GPS is an economical and reliable Time and
Frequency instrument offering a wide range of standard
features in a compact, IU rack-mount chassis.
Precision time and frequency outputs, accurate to 40
nano- seconds to UTC/USNO and 1x10 -12 respectively,
are provided in a variety of signal formats.
Applications for the popular GPS8 include central time
and frequency systems, timing for power utility systems,
and frequency standards for a wide variety of
communications installations. The IRIG B output is
perfect for use in range timing installations, as inputs to
SER and SCADA systems and for driving remote time
displays. 1PPM and 1PPD or IRIG B DC shift may be
selected for output.
A variety of internal oscillators, including the standard
TCXO, provide price/performance trade-off possibilities
for the user. The GPS 8 can be specified to include an
oscillator that is appropriate for almost any application.
An advanced oscillator control algorithm precisely
disciplines the internal oscillator to the GPS input
ensuring superior holdover performance. In addition to
the standard TCXO, a variety of oven controlled
(OCXO) and Rubidium oscillators are optionally
available.
� Timing Accuracy 40ns, rms to UTC
� 1PPS and IRIG B Time Code outputs
� Two Serial Ports
� 1 MHz, 5 MHz or 10 MHz sine waves
� 1.544, 2.048 or 19.6608 MHz outputs
Two serial data ports, RS-422 and RS-232 are provided.
Time, date, position, GPS satellite health and signal
strength are reported.
A precision 1PPS time mark output may be used for
synchronizing or calibrating other equipment.
The serial time code output (IRIG B is standard) allows
time synchronization to be distributed to computers,
displays, and other equipment requiring precise time.
Two square waves, 1.544, 2.048 or 19.6608 MHz, and an
8 kPPS frame rate enable the GPS 8 to be used as a
telecommunications primary reference clock (PRC).
Sine waves of 1, 5 or 10 MHz are also available. The sine
wave outputs are configured as two pairs of two of the
above frequencies. Signal level integrity monitoring is
provided for the sine wave outputs.
Status information is provided over the serial interface, by
a summary alarm, and by four front panel LED indicators.
The status reported by the summary alarm and the serial
interface includes loss of GPS signal, PLL unlock, loss of
output, and Rubidium oscillator unlock. (The rubidium
oscillator is an optional feature)
2230 South Fairview Street ●Santa Ana, CA 92704 ● 714-755-1050 phone ● 714-755-0175 fax
www.brandywinecomm.com info@brandywinecomm.com

GPS 8 Specifications
1 PPS Output GPS Specification
Connector BNC Satellite Signal GPS L1 1575.42 MHz
Amplitude & Impedance 0, +5Vdc from 50 Ohms Satellite Code C/A 1.023 MHz
On Time Rising Edge Receiver Type Parallel 8 Channel, 8 Satellites tracked
Duty Cycle 50% continuously and simultaneously
Serial Interface Position Accuracy 2.4 m horizontal, 5 m altitude with
Number of Ports 2 respect to WGS-84 after 24 hours of
Connector DB9 position averaging
Type RS-232 and/or RS-4221 Warm start